List of practice Questions

Which structure of man is similar to spiracle of cockroach?
The following are the branches of dorsal aorta. I. Intercostal II. Phrenic III. Coeliac IV. Anterior mesenteric V. Posterior mesenteric Of these, which set of arteries supply the blood to the glands of digestive system?
Calorie is defined as the amount of heat required to raise the temperature of $1 \,g$ of water by $1^{\circ} C$ and it is defined under which of the following conditions?
The effective electrophile in aromatic. sulphonation is
The variance of first n even natural numbers is $\frac{n^2 - 1}{4}$. The sum of first n natural numbers is $\frac{n(n + 1)}{2}$ and the sum of squares of first n natural numbers is $\frac{n(n + 1)(2n +1)}{6}$.
If $\alpha , \beta , \gamma$ are the roots of the equation $x^3 + px + q = 0$, then the value of the determinant $\begin{vmatrix}\alpha&\beta&\gamma\\ \beta&\gamma&\alpha\\ \gamma&\alpha&\beta\end{vmatrix} = $
$\cos^2 \frac{\pi}{12} + \cos^2 \frac{\pi}{4} \cos^2 \frac{5 \pi}{12} = $
Horn silver is
Tetrahedral structure is formed by
The standard temperature used in thermo- chemical calculations is
$2p_x$ atomic orbital undergoes linear combination with
To dry ammonia gas the drying agent used is
50 cc of oxalic acid is oxidized by 25 cc of 0.20 $ { N \, KMnO_4}$. The mass of oxalic acid present in 500 cc of the solution is
50% of a first order reaction is completed in 30 min. The velocity constant of the reaction is
0.5 g of an acid is neutralized by 40 cc of 0.125 N NaOH. The equivalent mass of the acid is
Which of the following is an intensive property?
A reaction is spontaneous at all temperatures when
The adsorption of an inert gas on activated charcoal increases with
When the same amount of electricity is passed through solutions of silver nitrate and copper sulphate, 0.4 g copper is deposited. The amount of silver deposited is
With the addition of impurities surface tension of a liquid
Viscosity decreases with increase in temperature is the reason for (i) hot water moving faster than cold water (ii) more viscous oils are used in motor cars during summer than in winter
A star is moving away from the Earth with speed $V$. Change in wavelength $(d\lambda)$ observed on Earth is
$_6C^{14}$ and $7_N^{15}$ are examples of
If the Earth shrinks in its size (radius) mass remaining the same, the value of g on its surface will
Distance between two point charges is increased by 20%. Force of interaction between the charges